US3605522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive units
Assignee: Automobiles Citroen SA
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Filing: 1968-11-22
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Granted: 1971-09-20
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Expires: 1988-11-22
Abstract
Abstract THE PRESENT INVENTION RELATES TO DRIVE UNITS AND ACCORDING THERETO SUCH A UNIT COMPRISES A TWO-STROKE ENGINE HAVING A SCAVENGING COMPRESSOR, A SPEED REGULATOR AND A DIFFERENTIAL GEAR. ONE OF THE ELEMENTS OF THE DIFFERENTIAL IS COUPLED TO A SHAFT OF THE COMPRESSOR, A SECOND OF THESE ELEMENTS IS COUPLED TO THE OUTPUT SHAFT OF THE ENGINE AND THE THIRD ONE OF THESE ELEMENTS IS FIXED TO AN INPUT SHAFT OF THE SPEED REGULATOR. THE SPEED REGULATOR MAY TAKE THE FORM OF A HYDROKINETIC TORQUE CONVERTER OR IT MAY BE ELECTRICAL OR MECHANICAL, IN WHICH LATTER CASE, IT CAN CONVENIENTLY COMPRISE A PAIR OF VARIABLE DIAMETER PULLEYS INTERCONNECTED BY BELT MEANS.
Inventors
- 👤 Albert Grosseau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:32
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/06; F16H47/08; F16H47/085; F02; F02B; F02B33/00; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H37/0833; F16H37/084; F16H37/0846; F02M; F02M2700/00; F02M2700/33; F02M2700/331; F02M2700/333; F16H2037/0866; F16H2700/00; F16H2700/02
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |